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Performance improvement of STBC CDMA system in correlated MIMO channels

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2 Author(s)
Rahmati, Mehdi ; Electr. Eng. Dept., Iran Univ. of Sci. & Technol., Tehran, Iran ; Vakili, V.T.

In this paper the effect of spatial correlation in code division multiple access (CDMA) space-time block coding (STBC) system is investigated. Having some information about the channel of each active user in the transmitter, a linear precoder can be exploited in downlink situation to mitigate the effect of correlation in multiuser system environment which has not been addressed before. Simulation results illustrate that despite the number of interfering users, the anti-correlation precoder could mitigate the performance degradation caused by correlation.

Published in:

Advanced Technologies for Communications, 2009. ATC '09. International Conference on

Date of Conference:

12-14 Oct. 2009